Brother Gf Sister on Vacation

My girlfriend Destiny, my little sister Nikki & I went on vacation to Las Vegas. When we got there, the only rooms available was with one bed. We had no choice but to take it. We went in & got everything situated & I told them that I brought ecstasy. My little sister Nikki was excited because it was her first time taking it. My girlfriend looked at me & winked before telling saying, "You should put the pills up your ass it'll hit you faster & harder. Trust me." Nikki looked at me & told us that she has never done it before because she doesn't know how. Destiny gently grabbed her by the hand & stood her up while she pulled down her pants. Nikki was shy but she went through with it & let Destiny take them off. Destiny put her on her hands and knees. "Just relax it's not going to hurt." Nikki got less tense & Destiny caressed her & said, "Arch your back like you're about to get fucked." Nikki did what she asked & it looks so hot. "Damn babe look at your sister's body. She is built to fuck. She got a fat ass & nice body. I can see why you always fantasize about her." I was in shock. Did she really expose me like that right in front of her?

Nikki looked at me and her eyes lowered as she giggled. Destiny was right though, Nikki looked perfect, even better than my girlfriend in fact. I subconsciously put my hand down my pants and didn't notice what I was doing until Destiny whispered to look at me in Nikki's ear. Nikki looked back at me and caught me with my hands down my pants looking at her ass and pussy as Destiny slapped her ass making a jiggle. "Men must have so much fun with your body. Your brother hasn't taken his eyes off of you since I put you on the bed on all fours. Look at him he is in a trance and he is jerking off while looking at you like a pervert." Destiny slapped her ass again and I woke up from my trance.

I heard Nikki moan as my girlfriend put her finger up her ass to loosen her up for the pills to be put up her ass. Then Nikki looked at me and said, "It looks like you're having fun their big bro. Are you enjoying the show?" I was so into what they were doing that I didn't even notice that I was jerking off subconsciously. I snapped out of it and when Destiny was done she picked me up and told Nikki that I had a boner while I watched. I excused myself to go take a shower and halfway into it my to it my sister comes in and asked if my gf & her can shower together. I told her that's fine but you guys have to record it. Nikki laughed and walked out.

I walked out in my towel & saw both of them sitting on the bed naked watching porn. I thought it was random but Destiny must have put it on because it was incest porn that was my favorite. Destiny made eye contact with me and winked and then said that it was her favorite part. "It was when she catches her brother spying on her while jerking off." Nikki looked like she was really into it. "Do you like it so far Nikki? Have you ever thought about your big bro in that way? Be honest we are all family here."

Nikki realized that I was out of the shower & I was staring at her naked body again. She then smiled and laughed as if she wasnt trying to answer her question. Nikki looked at me in my towel and said that she has thought about it before when she heard girls moaning and screaming at night coming from my room. Then Destiny did the unexpected and exposed me by telling Nikki that I have an incest fetish & she would roleplay as my sister all the time. Destiny laughed in my face knowing that she put me on the spot and knowing that Nikki also had an incest fetish because they are best friends and she was trying to help us both. Nikki jumped up embarrassed & blushing and said that she was going to take a shower & Destiny followed her & yelled, "I'm going to fuck your little sister in the shower daddy."

I waited till I heard the water running and then walked in there to pretend to try to catch my girlfriend naked but I was really trying to see Nikki naked again. They were both in the shower rubbing soap on each other. I opened the curtain and stood there admiring both of them. I told them that I was going to jerk off before they got out because the ecstasy hit me hard. Nikki jokingly said, "I hope you bust a fattest nut thinking about me since the secret it out big brother. I don't want you thinking about your girlfriend anymore I want you only thinking about me." Destiny sat there quietly as my sister dominated her. I know that my girlfriend would be a cuckqueen. I laughed and kissed my girlfriend with tongue in front of her as I grabbed her tit. I was about to walk out but destiny told me that that I should do the same to Nikki because she didn't want her jealous. I pretended like I was going to kiss her and Nikki pulled me in by my cock while looking at my girlfriend again. My sister put her in her place after exposing us like that.

I went back to the bed and put on my favorite porn and started to stroke it. When Nikki and my girlfriend came back in I didn't even stop because I was too high to care. Destiny walked straight up to me and started to suck me off has Nikki watched. I looked Nikki dead in the eyes and just watched her as she watched us while playing with her tits. Nikki put her hand on the back of Destiny's head and controlled her. "Oh fuck Nikki." Destiny pulled my cock out and looked at me and said wrong name. Nikki corrected her by slamming her head back down forcing her to deepthroat my cock & gag just to put her in her place. Nikki let Destiny go & forced her to look her in her eyes and told her, "I told you that is my brother and from now on I own him and you come 2nd place do you understand bitch?" My girlfriend looked up at her and nodded her head yes submissively & then Nikki told her to keep suckin me off.

Part 2 cumming soon